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<div class=" wh_topic_content body "><main role="main"><article class="" role="article" aria-labelledby="ariaid-title1"><article class="nested0" aria-labelledby="ariaid-title1" id="concept_p2w_x3z_yx">
 <h1 class="- topic/title title topictitle1" id="ariaid-title1">Creating Another Data Collector Instance</h1>
 
 <div class="- topic/body concept/conbody body conbody"><p class="- topic/shortdesc shortdesc">You can create another instance of a <span class="- topic/ph ph">Data Collector</span>
        tarball or RPM installation on the same machine with the <code class="+ topic/ph pr-d/codeph ph codeph">create-dc</code> command.
        The additional <span class="- topic/ph ph">Data Collector</span>
        instance uses the same configuration as the original <span class="- topic/ph ph">Data Collector</span>
        instance. You can modify the configuration properties as needed. </p>
        <div class="- topic/p p">When
            you want to run another <span class="- topic/ph ph">Data Collector</span>
            instance with the same configuration, using the <code class="+ topic/ph pr-d/codeph ph codeph">create-dc</code> command is
            simpler than downloading and installing another <span class="- topic/ph ph">Data Collector</span>. If
            you install a new instance, you then must manually make the same modifications to the
            configuration files.<div class="- topic/note note note note_note"><span class="note__title">Note:</span> The <code class="+ topic/ph pr-d/codeph ph codeph">create-dc</code> command copies the original <span class="- topic/ph ph">Data Collector</span>
                configuration directory inside the base runtime directory of the additional <span class="- topic/ph ph">Data Collector</span>
                instance. However, StreamSets recommends that you use directories outside of the
                runtime directory to enable use of the directories after <span class="- topic/ph ph">Data Collector</span>
                upgrades. For information on modifying <span class="- topic/ph ph">Data Collector</span>
                directories, see <a class="- topic/xref xref" href="../Configuration/DCEnvironmentConfig.html#concept_mnx_j3r_3v" title="Data Collector includes environment variables that define the directories used to store files used by Data Collector, such as configuration files, log files, and runtime resources.">Data Collector Directories</a>.</div></div>
        <p class="- topic/p p"><span class="- topic/ph ph">Data Collector</span> does
            not need to be running to use the <code class="+ topic/ph pr-d/codeph ph codeph">create-dc</code> command. Call the command
            from the <code class="+ topic/ph pr-d/codeph ph codeph">$SDC_DIST</code> directory as follows:</p>
        <div class="- topic/p p">
            <pre class="+ topic/pre pr-d/codeblock pre codeblock"><code>bin/streamsets create-dc -home=&lt;SDC_HOME_DIR&gt; (-httpPort=&lt;SDC_HTTP_PORT&gt; | -httpsPort=&lt;SDC_HTTPS_PORT&gt;) \
[-conf=&lt;SDC_CONF_DIR&gt;]</code></pre>
        </div>
        <p class="- topic/p p">Use the <code class="+ topic/ph pr-d/codeph ph codeph">-help</code> option to view additional information for the command, for
            example: <code class="+ topic/ph pr-d/codeph ph codeph">create-dc -help</code>.</p>
        <div class="table-container"><table class="- topic/table table frame-all" id="concept_p2w_x3z_yx__table_hsh_vjz_yx" data-ofbid="concept_p2w_x3z_yx__table_hsh_vjz_yx" data-cols="2"><caption></caption><colgroup><col style="width:33.33333333333333%"/><col style="width:66.66666666666666%"/></colgroup><thead class="- topic/thead thead">
                    <tr class="- topic/row">
                        <th class="- topic/entry entry colsep-1 rowsep-1" id="concept_p2w_x3z_yx__table_hsh_vjz_yx__entry__1">Create-dc Option</th>
                        <th class="- topic/entry entry colsep-0 rowsep-1" id="concept_p2w_x3z_yx__table_hsh_vjz_yx__entry__2">Description</th>
                    </tr>
                </thead><tbody class="- topic/tbody tbody">
                    <tr class="- topic/row">
                        <td class="- topic/entry entry colsep-1 rowsep-1" headers="concept_p2w_x3z_yx__table_hsh_vjz_yx__entry__1">-home=&lt;SDC_HOME_DIR&gt;</td>
                        <td class="- topic/entry entry colsep-0 rowsep-1" headers="concept_p2w_x3z_yx__table_hsh_vjz_yx__entry__2">Required. Home directory for the additional <span class="- topic/ph ph">Data Collector</span> instance. <div class="- topic/p p">The root of the specified home directory must exist.
                                However, the home subdirectory cannot exist because the command
                                creates that directory. For example, say you enter the following for
                                the home directory
                                option:<pre class="+ topic/pre pr-d/codeblock pre codeblock"><code>-home="/sdcs/sdc2"</code></pre></div><p class="- topic/p p">The directory
                                    <code class="+ topic/ph pr-d/codeph ph codeph">/sdcs</code> must exist and must not contain a
                                subdirectory named <code class="+ topic/ph pr-d/codeph ph codeph">/sdc2</code>.</p></td>
                    </tr>
                    <tr class="- topic/row">
                        <td class="- topic/entry entry colsep-1 rowsep-1" headers="concept_p2w_x3z_yx__table_hsh_vjz_yx__entry__1">-httpPort=&lt;SDC_HTTP_PORT&gt;<p class="- topic/p p">or</p><p class="- topic/p p">-httpsPort=&lt;SDC_HTTPS_PORT&gt;</p></td>
                        <td class="- topic/entry entry colsep-0 rowsep-1" headers="concept_p2w_x3z_yx__table_hsh_vjz_yx__entry__2">Required. HTTP or HTTPS port for the additional <span class="- topic/ph ph">Data Collector</span> instance. Enter a port number that is not in use. </td>
                    </tr>
                    <tr class="- topic/row">
                        <td class="- topic/entry entry colsep-1 rowsep-0" headers="concept_p2w_x3z_yx__table_hsh_vjz_yx__entry__1">-conf=&lt;SDC_CONF_DIR&gt;</td>
                        <td class="- topic/entry entry colsep-0 rowsep-0" headers="concept_p2w_x3z_yx__table_hsh_vjz_yx__entry__2">Optional for tarball installations with a manual start. Required for
                            tarball and RPM installations with a service start. The configuration
                            directory of the original <span class="- topic/ph ph">Data Collector</span> instance. <p class="- topic/p p">For a tarball installation with a manual start, you must
                                use this option if you changed the default location of the <span class="- topic/ph ph">Data Collector</span> configuration directory, <code class="+ topic/ph pr-d/codeph ph codeph">$SDC_DIST/etc</code>. For
                                example, you must use this option if you followed our recommendation
                                to use a configuration directory outside of the base runtime
                                directory, <samp class="+ topic/ph sw-d/systemoutput ph systemoutput sysout">$SDC_DIST</samp>.</p><p class="- topic/p p">For a
                                tarball or RPM installation with a service start, you must use this
                                option. The default location for the <span class="- topic/ph ph">Data Collector</span> configuration directory for a service start is
                                    <code class="+ topic/ph pr-d/codeph ph codeph">/etc/sdc</code>.</p><p class="- topic/p p">Default is
                                    <code class="+ topic/ph pr-d/codeph ph codeph">$SDC_DIST/etc</code>.</p></td>
                    </tr>
                </tbody></table></div>
        <div class="- topic/p p">For example, the following command creates an additional <span class="- topic/ph ph">Data Collector</span>
            instance with a home directory of <code class="+ topic/ph pr-d/codeph ph codeph">/sdcs/sdc2</code> and an HTTP port of 19001.
            The original <span class="- topic/ph ph">Data Collector</span>
            instance is an RPM installation, and so the command specifies the location of the
            original <span class="- topic/ph ph">Data Collector</span>
            configuration directory as <code class="+ topic/ph pr-d/codeph ph codeph">/etc/sdc</code>:
            <pre class="+ topic/pre pr-d/codeblock pre codeblock"><code>bin/streamsets create-dc -home="/sdcs/sdc2" -httpPort=19001 -conf="/etc/sdc"</code></pre></div>
        <p class="- topic/p p">The command copies the configuration directory of the original <span class="- topic/ph ph">Data Collector</span>
            instance inside the home directory of the additional <span class="- topic/ph ph">Data Collector</span>
            instance, so that the configuration directory for the additional <span class="- topic/ph ph">Data Collector</span>
            instance is: <code class="+ topic/ph pr-d/codeph ph codeph">/sdcs/sdc2/etc/sdc</code>. </p>
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